[Machine] The Prophet Muhammad ﷺ said, "Indeed, Allah has an angel appointed over the one who says, 'O Most Merciful of the Merciful.' So whoever says it three times, the angel says, 'Indeed, the Most Merciful of the Merciful has accepted your supplication, so ask.'"
قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ لِلَّهِ مَلَكًا مُوَكَّلًا بِمَنْ يَقُولُ يَا أَرْحَمَ الرَّاحِمِينَ فَمَنْ قَالَهَا ثَلَاثًا قَالَ الْمَلَكُ إِنَّ أَرْحَمَ الرَّاحِمِينَ قَدْ أَقْبَلَ عَلَيْكَ فَاسْأَلْ